diff options
Diffstat (limited to 'drivers/misc/habanalabs/gaudi/gaudi.c')
| -rw-r--r-- | drivers/misc/habanalabs/gaudi/gaudi.c | 41 |
1 files changed, 32 insertions, 9 deletions
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index f5b211416e7f..65b7e20b8f4a 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -673,16 +673,33 @@ static int gaudi_early_fini(struct hl_device *hdev) * @hdev: pointer to hl_device structure * */ -static void gaudi_fetch_psoc_frequency(struct hl_device *hdev) +static int gaudi_fetch_psoc_frequency(struct hl_device *hdev) { struct asic_fixed_properties *prop = &hdev->asic_prop; - u32 trace_freq = 0; - u32 pll_clk = 0; - u32 div_fctr = RREG32(mmPSOC_CPU_PLL_DIV_FACTOR_2); - u32 div_sel = RREG32(mmPSOC_CPU_PLL_DIV_SEL_2); - u32 nr = RREG32(mmPSOC_CPU_PLL_NR); - u32 nf = RREG32(mmPSOC_CPU_PLL_NF); - u32 od = RREG32(mmPSOC_CPU_PLL_OD); + u32 trace_freq = 0, pll_clk = 0; + u32 div_fctr, div_sel, nr, nf, od; + int rc; + + if (hdev->asic_prop.fw_security_disabled) { + div_fctr = RREG32(mmPSOC_CPU_PLL_DIV_FACTOR_2); + div_sel = RREG32(mmPSOC_CPU_PLL_DIV_SEL_2); + nr = RREG32(mmPSOC_CPU_PLL_NR); + nf = RREG32(mmPSOC_CPU_PLL_NF); + od = RREG32(mmPSOC_CPU_PLL_OD); + } else { + rc = hl_fw_cpucp_pll_info_get(hdev, cpucp_pll_cpu, + cpucp_pll_div_factor_reg, &div_fctr); + rc |= hl_fw_cpucp_pll_info_get(hdev, cpucp_pll_cpu, + cpucp_pll_div_sel_reg, &div_sel); + rc |= hl_fw_cpucp_pll_info_get(hdev, cpucp_pll_cpu, + cpucp_pll_nr_reg, &nr); + rc |= hl_fw_cpucp_pll_info_get(hdev, cpucp_pll_cpu, + cpucp_pll_nf_reg, &nf); + rc |= hl_fw_cpucp_pll_info_get(hdev, cpucp_pll_cpu, + cpucp_pll_od_reg, &od); + if (rc) + return rc; + } if (div_sel == DIV_SEL_REF_CLK || div_sel == DIV_SEL_DIVIDED_REF) { if (div_sel == DIV_SEL_REF_CLK) @@ -706,6 +723,8 @@ static void gaudi_fetch_psoc_frequency(struct hl_device *hdev) prop->psoc_pci_pll_nf = nf; prop->psoc_pci_pll_od = od; prop->psoc_pci_pll_div_factor = div_fctr; + + return 0; } static int _gaudi_init_tpc_mem(struct hl_device *hdev, @@ -1315,7 +1334,11 @@ static int gaudi_late_init(struct hl_device *hdev) WREG32(mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR, GAUDI_EVENT_INTS_REGISTER); - gaudi_fetch_psoc_frequency(hdev); + rc = gaudi_fetch_psoc_frequency(hdev); + if (rc) { + dev_err(hdev->dev, "Failed to fetch psoc frequency\n"); + goto disable_pci_access; + } rc = gaudi_mmu_clear_pgt_range(hdev); if (rc) { |